[Qemu-devel] [PATCH v3 5/5] Make vfio-pci device migration capable.

[Kirti Wankhede <kwankhede@nvidia.com>]

Call vfio_migration_probe() and vfio_migration_finalize() functions for
vfio-pci device to enable migration for vfio PCI device.
Removed vfio_pci_vmstate structure.

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Neo Jia <cjia@nvidia.com>
---
 hw/vfio/pci.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index e87a8a03d3f3..0fe42d146006 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2939,6 +2939,7 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
     vdev->vbasedev.ops = &vfio_pci_ops;
     vdev->vbasedev.type = VFIO_DEVICE_TYPE_PCI;
     vdev->vbasedev.dev = &vdev->pdev.qdev;
+    vdev->vbasedev.device_state = 0;
 
     tmp = g_strdup_printf("%s/iommu_group", vdev->vbasedev.sysfsdev);
     len = readlink(tmp, group_path, sizeof(group_path));
@@ -3175,6 +3176,8 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
         goto out_teardown;
     }
 
+    ret = vfio_migration_probe(&vdev->vbasedev, errp);
+
     vfio_register_err_notifier(vdev);
     vfio_register_req_notifier(vdev);
     vfio_setup_resetfn_quirk(vdev);
@@ -3213,6 +3216,7 @@ static void vfio_exitfn(PCIDevice *pdev)
 {
     VFIOPCIDevice *vdev = PCI_VFIO(pdev);
 
+    vdev->vbasedev.device_state = 0;
     vfio_unregister_req_notifier(vdev);
     vfio_unregister_err_notifier(vdev);
     pci_device_set_intx_routing_notifier(&vdev->pdev, NULL);
@@ -3222,6 +3226,7 @@ static void vfio_exitfn(PCIDevice *pdev)
     }
     vfio_teardown_msi(vdev);
     vfio_bars_exit(vdev);
+    vfio_migration_finalize(&vdev->vbasedev);
 }
 
 static void vfio_pci_reset(DeviceState *dev)
@@ -3328,11 +3333,6 @@ static Property vfio_pci_dev_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
-static const VMStateDescription vfio_pci_vmstate = {
-    .name = "vfio-pci",
-    .unmigratable = 1,
-};
-
 static void vfio_pci_dev_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -3340,7 +3340,6 @@ static void vfio_pci_dev_class_init(ObjectClass *klass, void *data)
 
     dc->reset = vfio_pci_reset;
     dc->props = vfio_pci_dev_properties;
-    dc->vmsd = &vfio_pci_vmstate;
     dc->desc = "VFIO-based PCI device assignment";
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     pdc->realize = vfio_realize;
-- 
2.7.0